UN-HABITAT -Nairobi, KE, United Nations Human Settlements Programme and Copenhagen, D. K. D. A. N. I. D. A. -,
“Community participation in low-cost sanitation : training module”. UN-Habitat, United Nations Centre for Human Settlements, Nairobi, Kenya, p. iv, 81 p., 1986.
UN-HABITAT -Nairobi, KE, United Nations Human Settlements Programme,
The design of shallow sewer systems. Nairobi, Kenya: UN-Habitat, United Nations Centre for Human Settlements, 1986, p. iii, 87 p.: fig., tab.